update_engine: Move CA certs to separate ebuild

Change-Id: If8ffe94e01ceeaeb6d0677d7bdf3019f9a247db0

BUG=8938
TEST=Manually verified same installation point

Review URL: http://codereview.chromium.org/5231001
diff --git a/libcurl_http_fetcher.cc b/libcurl_http_fetcher.cc
index b65d6b1..460b980 100644
--- a/libcurl_http_fetcher.cc
+++ b/libcurl_http_fetcher.cc
@@ -24,7 +24,7 @@
 
 namespace {
 const int kMaxRetriesCount = 20;
-const char kCACertificatesPath[] = "/usr/share/update_engine/ca-certificates";
+const char kCACertificatesPath[] = "/usr/share/chromeos-ca-certificates";
 }  // namespace {}
 
 LibcurlHttpFetcher::~LibcurlHttpFetcher() {